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(a) As a soap bubble thins it becomes dark, because the path length difference becomes small compared with the wavelength of light and there is a phase shift at the top surface. If it becomes dark when the path length difference is less than one-fourth the wavelength, what is the thickest the bubble can be and appear dark at all visible wavelengths? Assume the same index of refraction as water.
(b) Discuss the fragility of the film considering the thickness found.
The picture below shows a wire loop composed of two circular arcs, and two straight pieces. The twocircular arcs are concentric, meaning they sit on the perimeter of two circles that share a common center, and both arcs span 90 degrees. Determine ..
A small object is located 16.0 cm in front of a concave mirror with a radius of curvature of 46.0 cm. Where will the image be formed? (Enter a negative value if the image forms behind the mirror.)
Conclude the electric field at the origin
Water flowing through a garden hose (of diameter 2.74 cm) fills a 25 L bucket in 1.5 min. What is the speed of the water leaving the hose
A man's leg can be thought of as a shaft of bone 1.2m long. If the strain is 1.3x 10^-4 when the leg supports his weight, by how much is his leg shortened
The Cosmoclock 21 Ferris wheel in Yokohama City, Japan, has a diameter of 100 m. Find the speed of the passengers when the Ferris wheel is rotating at this rate (in m/s)
A 0.401 kg bead can slide on a curved wire, If the wire is frictionless and the bead is released with an initial speed of 12.8 m/s in the forward direction then find the speed of the bead at B
q1. an electric field of 8.55x105 vm is desired between two parallel plates each of area 35.00 cm2 and separated by
A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a possible alternativ..
A nuclear power plant operates at 65% of its maximum theoretical (Carnot) efficiency between temperatures of 580oC and 350oC. find how much exhaust heat is discharged per hour
An electric fan is turned off, and its angular velocity decreases uniformly from 500 rev/min to 200 rev/min in a time interval of length 4.00 s. Find the number of revolutions made by the motor in the time interval of length 4.00s
Assuming that all the heat generated by the resistor is absorbed by the solid substance, and that it takes 4 minutes to raise the temperature from 20to 80 degrees C, compute the specific heat for the substance.
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